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  #25  
Old 01-12-2015, 11:28 AM
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Re: How low (fuel tank) have you dared to go?

I've put more than 24 gallons in. That was a scary situation

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  #26  
Old 01-12-2015, 11:42 AM
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Re: How low (fuel tank) have you dared to go?

The 14/15 GC have left/right fuel tanks. How are they setup? Separate fuel pumps? How does the 2-tank system work for fuel filling and for fuel delivery to the engine?
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  #27  
Old 01-12-2015, 12:22 PM
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Re: How low (fuel tank) have you dared to go?

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Originally Posted by f1anatic View Post
Hmmm I guess you are not familiar with fuel starvation and fuel pressure issues and consequences. Fuel into the engine, even at 8 oz/min is not exactly gravity fed or delivered at garden hose pressures.
Hmmm, no one mentioned fuel starvation until you did. Tell me how my previous post explains what I know or don't know about fuel starvation?
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  #28  
Old 01-12-2015, 01:47 PM
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Re: How low (fuel tank) have you dared to go?

I personally feel the over heating the fuel pump and condensation in tank causing freezing issues and the car not starting are just myths from the passed. Either that or people just worry about things too much. I have never once experienced any issues like this, never heard of anyone else experiencing these issues, and probably never will hear of anyone having these issues. People have their own opinions and I understand that, but I feel not letting the fuel tank go less than half a tank is just borderline "doomsday prepper" style haha. Either you are worried about something that I don't know about, or you just really love stopping and filling up with gas way earlier than you need to. These are issues that would maybe would effect a person who has stalled their car out multiple times from running it empty, and even those fuel pumps probably continued to work just fine for the life of the vehicle.
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  #29  
Old 01-12-2015, 01:51 PM
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Re: How low (fuel tank) have you dared to go?

I bet plenty on here use gas line antifreeze even though the owners manual clearly states not too.

Some folks just think they know best regardless the situation.
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  #30  
Old 01-12-2015, 04:22 PM
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Re: How low (fuel tank) have you dared to go?

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Originally Posted by Hemispin View Post
Hmmm, no one mentioned fuel starvation until you did. Tell me how my previous post explains what I know or don't know about fuel starvation?
Common rail - Wikipedia, the free encyclopedia

I would NOT risk a low fuel tank when the operating pressures are in the 15-40,000 psi range. Even if we are talking of a 6-pack of fuel every 10 minutes, or whatever that volume is.
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  #31  
Old 01-12-2015, 04:51 PM
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Re: How low (fuel tank) have you dared to go?

a) would think the fuel moving through it would cool things
b) at first I thought it was a Challenger but then thought noooo. Just another one of my hobbies (if steam comes back, I'm ready.)
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  #32  
Old 01-12-2015, 05:32 PM
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Re: How low (fuel tank) have you dared to go?

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Originally Posted by chwoner View Post
If you are driving an 83 pinto maybe
No one has ever driven an 83 Pinto.

Quote:
Originally Posted by chwoner View Post
Some folks just think they know best regardless the situation.
Some of us do.
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  #33  
Old 01-12-2015, 10:56 PM
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Re: How low (fuel tank) have you dared to go?

Quote:
Originally Posted by padgett View Post
b) at first I thought it was a Challenger but then thought noooo. Just another one of my hobbies (if steam comes back, I'm ready.)
Greetings,

It is hard to tell in photo the count of the drive wheels and you are right due to the angle of the photo taken, it is mistaken for the Challenger. UP has a working Challenger # 3985 that is suppose to go back on line shortly.

I remember reading back in the late 90's a freight train powered by at least 3 modern diesel-electric locomotives of that era could not make it up a grade on the main line out west. The engineer of the train called for assistance for pusher engines on the rear of the freight train. The closet engine and the one right behind it was Challenger # 3985 with its cars on scenic run with passengers. The only thing the Challenger engineer wanted to make sure that he could find water someplace on the main line later. Long story short, the passengers on the scenic ride got more than they paid for, watching a steam locomotive bail out a bunch of diesels.

https://www.funtrainrides.com

Sorry folks that I hijack the thread again, but I am sure JACKO15 will get a kick out of this.

Best for now.
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  #34  
Old 01-13-2015, 07:37 AM
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Re: How low (fuel tank) have you dared to go?

Quote:
Originally Posted by MDBones View Post
No one has ever driven an 83 Pinto.



Some of us do.
exactly my point
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  #35  
Old 01-13-2015, 08:13 AM
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Re: How low (fuel tank) have you dared to go?

Quote:
Originally Posted by f1anatic View Post
Common rail - Wikipedia, the free encyclopedia

I would NOT risk a low fuel tank when the operating pressures are in the 15-40,000 psi range. Even if we are talking of a 6-pack of fuel every 10 minutes, or whatever that volume is.
You didn't answer my question. I'm not sure why you brought up direct injection, as only the diesel GC uses it. Bottom line: Gasoline fuel pumps that are pumping around 8 oz per minute are NOT working hard. I've never had to replace a fuel pump. No need to over-analyze a non-issue or create false drama for yourself.

I said I fill up when my tank gets to 1/4 to 1/8. That is not risking a "low tank". I've even had the low fuel light come on a few times. I'm sure my fuel pump will be just fine.
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  #36  
Old 01-13-2015, 10:13 AM
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Re: How low (fuel tank) have you dared to go?

Quote:
Originally Posted by JTS97Z28 View Post
I personally feel the over heating the fuel pump and condensation in tank causing freezing issues and the car not starting are just myths from the passed. Either that or people just worry about things too much. I have never once experienced any issues like this, never heard of anyone else experiencing these issues, and probably never will hear of anyone having these issues. ~SNIP~
Well, my name is Daniel, nice to meet you...

Seriously though, its been a long time, completely different vehicle (completely different brand) but yes, I once had an overheating fuel pump caused by low fuel...

2000 Grand Am GT just for the record.

I had little money at the time and was VERY bad about driving it down to fumes every single tank.

Had about 30K on it. Had been on the road about 20 minutes, tank was (as usual) below 1/8th... Car died. Acted like I ran out of gas. Thought maybe the fuel gauge was stuck, walked to a gas station a couple miles up the road, bought a gas can and 2 gallons of fuel, returned to pour my 2 gallons in and it fired right up.

Drove to the gas station, filled up and went home.

A week later, it did it again (but with slightly more fuel showing on the gauge). This time I was nowhere near a gas station. I sat waiting on a ride to show up. About 45 mins passed, decided to try it. Sure enough, fired right up. Again, drove 20 minutes, died again.

Bottom line, turned out the fuel pump was overheating. As long as I kept 1/4 tank or more in it, no problems at all, for more than a year and 20K + miles!

Now with all of that said, obviously the pump was bad. I cant say for sure me running it low made it go bad. It could have just been a bad pump.

But I can say for sure that in this case, too low of fuel did make the pump run hotter and eventually overheat so at least with a GM 15 years ago, I do believe there is SOME merit in the pump being cooled by standing fuel...

Final thoughts- At the time I was told by multiple mechanics that my actions of running it low IS what caused it, but I maintained that if that was the case, that was horrible and stupid engineering. It should be built to withstand the practice of filling up rarely..

VERY good chance they ARE built for that today so really, I wouldn't (and don't) worry TOO much about it, though I rarely let it get below 1/8 tank since then.
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